Summary: Modernize Project edges to subclass `PhabricatorEdgeType`. Largely based on D11045.
Test Plan: Add a member to a project, saw new rows in the `phabricator_project.edge` and `phabricator_user.edge` tables.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11111
Summary: Fixes T4400. Removes very, very old "PhabricatorObjectListView", which was only used here.
Test Plan: {F132249}
Reviewers: chad, btrahan
Reviewed By: btrahan
Subscribers: epriestley, chad
Maniphest Tasks: T4400
Differential Revision: https://secure.phabricator.com/D8574